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relay switch

  1. T

    Question about technical limitations of 12v relay switches

    Hi, I'm new here, I've just started a project that has me building an electrical circuit for the first time and I don't really know what I'm doing! I'm hoping someone can answer a quick question. I have a 12v electric motor (has two power levels, at 9A and 20A and it was suggested to go with a...
  2. I

    Troubleshooting / repairing basic panel heater

    Hello, I have a panel heater that stopped working. It's a large item, and a relatively basic electrical device. So rather than through it away, I'm going to try and fix it. It has a relatively simply 2x1 inch component board in it. What I have determined so far: 1. There is power reaching...
  3. P

    Help please, will this circuit work.

    Can anybody advise me if the circuit attached will function as required. The external timer supplies a 6 volt signal to the relay coil for between 3 & 9 seconds, this in turn drives the 12 volt motor for the 3 to 9 seconds & it also charges the 220uf capacitor. At the end of the 3 to 9 seconds...
  4. D

    Control I2C Relay device from longer distances

    I need to Control I2C Relay device switching with 2 ESP8266, As I have to use wired connection and control the relay from 40 m distance from every ESP8266. According to some suggestion, I should be using I2C extender but how much far we can use these extenders and is there any other way also...
  5. J

    Single pulse latching relay?

    I'm working on a project for school, it's basically a IR controlled fan with 9V DC. Basically you press any button on a tv remote and the IR sensor ( TSOP 1838) picks up the signal and outputs it to the fan and the fan spins. Problem with this is I have to continuously keep a button pressed on...

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